Liuwei Dihuang Wan belongs to the Yin-nourishing medicinal formulas in Traditional Chinese Medicine, characterized by its cool properties. Its primary function is to nourish the kidney Yin and is suitable for various diseases caused by kidney Yin deficiency. Kidney Yin deficiency may manifest symptoms such as soreness in the loins and knees, dizziness, dry mouth and throat, a red tongue with little coating, and a thin pulse. In cases of premature ejaculation caused by kidney Yin deficiency, Liuwei Dihuang Wan is an appropriate choice and can be effective.